Respuesta :

Refer to the diagram shown below.

The angle is in quadrant 4, therefore cos θ is positive.
The length of the hypotenuse is determined from the Pythagorean theorem as
c² = 3² + 4² = 25
c = 5
Calculate cosine of the reference angle.
cos θ = 3/5

Answer: 3/5
Ver imagen Аноним
7yc9davjpy

Answer:

B. 3/5

Explanation:

Otras preguntas

Q&A Education